Biden said on Sunday that he spoke with Chinese Premier Li Qiang at the G20 summit.

This the highest-level meeting between US and Chinese officials in nearly 10 months, since Biden spoke with President Xi Jinping at last year's G20 in Indonesia.

"My team, my staff still meets with President Xi's people and his cabinet," Biden told reporters. "I met with his No.2 person in India today."

"We talked about stability," he said, adding that they discussed developments in the Southern Hemisphere. "It wasn't confrontational at all."

Biden said that China's economy was in "crisis."

"One of the major economic tenets of [Xi's] plan isn't working at all right now," he Biden said. "I'm not happy for that, but it's not working."

The US president said he believed that China's economic troubles were unlikely to spark an invasion of Taiwan.

"I don't think this is going to cause China to invade Taiwan," he said. "As a matter of fact, the opposite, probably doesn't have the same capacity that it had before."